Muffle for earthenware



(No Model.)

F. R. GILLINDER.

MUFPLE FOR EARTHBNWAR'E, 8:0. No. 337,575.- Patented Mar. 9, 1886.

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UNITED STATES- PATENT OFFICE.

FREDERICK R. GILLINDER, OF PHILADELPHIA, PENNSYLVANIA.

MUFFLE FOR EARTHENWARE, 80c.

SPECIFICATION forming part of Letters Patent No. 337,575.11ated March 9,1886.

Application filed November 27, 1885. Serial No. 184,054. (No model.)

To all whom it may concern:

Be it known that I, FREDERICK R. GILLIN- DER, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, haveinvented a new and useful Improvement in Muffles for Glass, Earthenware, &c., which improvement is fully set forth in the following specification and accompanying drawings, in which- Figure 1 represents a side elevation of a muffle embodying my invention. Fig. 2 represents a longitudinal vertical section thereof. Fig. 3 represents an end view thereof. Fig. 4 represents a transverse vertical section thereof.

' Similar letters of reference indicate corresponding parts in the several figures.

My invention consists of a muffle for glass, earthenware, or similar ware, &c., of a particular construction, as hereinafter set forth, wherein the operation may be continuously carried on, the work being subjected to partial heat, then to full heat, and gradually cooled, the muffle being more particularly designed for burning in colors on the aforementioned Ware.

Referring to the drawings, A represents a furnace, and B represents a chamber, which is supported on the masonry ot' the furnace or other means, and located over the furnace, so as to be heated therefrom, a flue, 0, being left between the sides and top of said chamber and the adjacent walls of the furnace, said flue being in communication with the firepot D of the furnace and the stack E thereof, whereby the products of combustion enter the said flue G, and thus heat the sides and top of the chamber B.

F G representchambers respectively supported at opposite ends of the chamber B and in communication therewith, whereby there is a continuous passage through the several chambers.

On the floor of the chambers are laid tracks H, on which is run a car or wagon, J, the latter sustaining the glass, earthen, or other ware, &c., to be subjected to the muffle, and adapted to pass the same through the chambers B F G.

K represents a valve intermediate of the chambers B F, and K represents a valve intermediate of the chambers B G, said valve being operative, so that the several chambers may be placed in communication or closed, as 55 desired.

When the valves are opened, the car,with the Ware thereon, is passed through the chamber F, whereby the ware is gradually heated, after which it is pushed into the chamber B, and the valves are closed, so that the ware is subjected to the internal heat of the chamber B. The valves are now opened, and the car pushed into the chamber G, so that the ware is subjected to the reduced heat therein and gradually cooled, so as to be in condition for final cooling as it leaves the chamber G, thus avoiding cracking or fracture, it being noticed that a series of cars will be placed on the track, so that the car in advance may be pushed forward by the following cars, and thus the work may be continuously carried on, it being evident that the chambers F G receive their 'heat from the chamber B, and the several chambers are in the same plane.

I am aware that it is not new to constructa muffle having chambers which are adapted to be heated to different temperatures, and so located that the material to be heated may be continuously passed through the same, and such I do not claim.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A muffle having end chambers and a central chamber which is located directly over the fire-pot, and provided with valves or doors, by which the same can be separated from the other chambers, substantially as described.

'2. A muffle having a chamber and a flue around the same for passing the products of 9:) combustion over thesides and top of said chamber, substantially as described.

3. A muffle provided with chambers, sub stantially as described, the same being provided with valves for placing the chambers in and out of communication, substantially as described.

4. A muffle having the furnace A, the firepot D, central chamber, B. directly over the fire-pot, and having the flue O on the sides and top of the same, end chambers, F and G, and valves K and K, whereby the chamber B may be entirely separated from the chambers F and G, substantially as described.

FREDK. R. GILLINDER.

Witnesses:

JOHN A. W'I'nDERsHEIM, A. P. GRANT. 

